Idaho underpass ushers wildlife safely across highway

WILDLIFE — Wildlife are quickly figuring out the safety benefits of an underpass built on Idaho Highway 21, where about 2,600 vehicles travel to and from the Boise area each day.

Instead of becoming roadkill, deer have been documented using the underpass to come and go while avoiding the collisions with vehicles that prompted the project.

An estimated 90 percent of a herd of 5,000 to 8,000 mule deer and a herd of 300 to 1,800 elk cross the highway each fall, when they come down from the mountains to the Boise Front and the Lucky Peak area.

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